Rotary fan.



LIS.

FAN.

APPLIOA Patented Dec. 12, 1911.

v 2 SHEETS-SHEET 2.

WITNESSES: 1 40m t str-Anas PATENT-OFFICE,

JAMES INCLIs, or DETROIT, MICHIGAN, AssIGNoR To AMERICAN BLOWER COMPANY,

^ or DETROIT, MICHIGAN, A CORPORATION or NEW YORK.'

ROTARY IAN.

Specification of Letters Patent. lApplication filed March 14, 191.1. Serial No. 614,416.

Patented Dee. 12; 191er.-

To vall lwhom 'it-may comem: U Be it known that I, JAMES INGLIs, a citizen of the United States, residing at Detrolt,

in the county of Wayne and State of lMichigan, have invented certain new and useful Improvements in Rotary Fans, of which the following is a specification.

The invent-ion relates to rotary fans, and especiallyto such as are used for ventilating purposes.

The object of the invention is toprovide.

an improved means of this character ad-` justable to direct the current of air produced by it at different angles',or`e`ven tov reverse the direction of the current of air.

A further object is to provide such a device adapted for use in the walls of buildings, or with a window-board placed in the window frame above or below the window sash. 1 l An embodiment of the invention is illustrated in the accompanying drawing, where- 1n- Figure 1 is a rear elevation of the fan with parts broken away; Fig. 2 is a transverse section, vwith parts in elevation, and Fig. 3 is a side elevation showing the fan tilted; j

In said drawing A indicates a fan-wheel of suitable form, and BY any suitable motor for driving the fanwheel. Preferably an' electric motor is employed, as shown, on the shaft @of which the fan-wheel is mounted. In order to provide for the adjustment of the fan-wheel to. direct the current of air produced thereby in diferent'directions, it is mounted in a frame C journaled upon any suitable support D, and preferably provided with suitable means E, for moving it to its A adjusted positions. 'As shown, one of the journals 'c of the frame has attached there-v to a gear e meshing with a worm f upon a rod or shaft g journaled in a bracket t profan and support whereby neitherl .the fanl wheel nor the motor projects an undue dis- :clear from Fig. 3.

the support D y-through lwhich the .air is in the preferred construction the pivotal tance Y, beyond the support D. To this end i the .distance -from its'point of intersection i with-,the fan shaft to the rear ofthe motor is substantially the same as the distance from such point to the-periphery of the fan wheel. By this means the tips ofthe fan blades` and the rearof thermotor describe substantially the same circle when the device is swung around its ivotal axis, as will'be he circular opening j driven or drawn by the fan` wheel may -hence be-of a diameter which is notvmaterially larger than the diameter of' the fan wheel, and yet permit the fan to be tilted as illustrated in Fig. 3 so that it "occupies a position partly on one side and partly on the other side of the opening. Or With a minimum size of opening the fan may be entirely y f reversed if desired. This `construction not only provides the minimum degree lof projection on each sideiof the vopening but also reduces the size andweight of the support D. The support is preferably provided withannular flanges k c which when the fan wheel is running ona horizontal axis provide a housing for the fan wheel. The pivotal axis of the frame C is preferably located at a point between the fan wheel and the motor in order to best secure these results. It is desirable, however, tok support the device from the *motor casing, and for' this purpose the frame vC is preferably bowed rearwardly, and is connected with the motor casing at or near the middle of the y latter. y The frame for the fan-wheel may be mounted at any angle onits support, and the gears and rod/provide a convenient means for adjusting the fan-wheel and frame, especially when the fan is located'out of reach. These means are also especially advantageous when the support for the frame and fan-wheel is in the formof a wall plate and located in the wall or window of a building.-

By manipulating the hand-wheel the fanwheel lmay' be adjusted to direct the current of air blown from it at different angles,`and

by turning it far enough Vthe fan may be reversed so asto direct the current of air in` the opposite direction. Forr instance, if the fan be located wallaor windowof a building, itfinay vbegman'plpllated to blow llaa..

the air intotlie of drawing itlout, or vice versa., .Y

fioV

while L have .insnn and Ide'sgi-ita1 fone! embodixentff jmyyinvention, it 17s not to be understood as limited thereto', as modiications maybe' madeftherein: without def'l parting ,fronthe spirit of nthe invention. "f-What'I clalrfi-isf /A 15. VIn a fanythe combinationof a support 'having an openinggia fan wheel mounted in' f said openingxa tilting-frame having bearing for 4sad'jrfan ;-i vvhee 1 andimea-ns for driving i. said fan ,wheel,= said opening being as large v asf the diameter fo'fthefan wheel, and said fan wheel being-adapted. to pass into said opening when tilted. l j A 2. In a an, the comblnation of a support havingV an,"opening, a motor, a fan wheel mounted upon the motor shaft, a tilting and motor andpivotedin said opening-and said' openingbemg as' large as the diameter ing-iframe carrying said ymotor and fan (wheel, the pivotal axis of said frame being transverse to said openln'gand located ap- 'A which said. motor and fan wheelare pivoted frame' having bearings for saidfan wheel of the fan wheel. Y.

. 3. a fam the combination of a support Yhaving -anjA opening, a motor, a fan'wheel moiintefd upon themotor shaft, and a.A tiltpreximately between' the fan wheel and motor. Y v- A 4. In a fan,V the combination of a support havingan opening, a motor, a fan Wheel .mounted upon the motor shaft, andmeans for pivoting said motor and -anwheel in said opening, the distance from the point of intersection of said pivotal axis with the 5 motor shaft to the rear of the motor being substantially equal to the distance from'such point to the periphery of the-fan wheel.

5. In a fan, the combination of a support having an opening, a motor, a fan wheel 'monntedn upon the motorshafnmeans Afor Y 'animee vpivoting said motor andffanwheel in said Y lopening-on a transversejaxis, the distance from the point oflinters'ection ofsaid piv# Yotal axis with the motor shaft to? the "rear of the mot-or being substantially-equal to the justed.'v positions.

6. In a fan', the

.pivoting said -motor and fan wheelin said o ening, said opening being of substantially :t e saine diameter as the fan wheel, and said lfan -wheeland motor adapted to be .Y tilted within said opening to a position in which the fanwheel extends partlyA on one side and partly onV thec'lother side of said opening.

8. Ina anpthe :combination of a support 'having an opening, a `motor; a fan wheel driven by said 'mot9r,v a tilting frame on in' said opening, said opening being as large 'as the diameter of the ian' wheel, and said motor and'fan wheel being adapted to be tilted completely over through said opening whereby the fan vmay operate in a reverse direction. Y

In witness whereof, I have hereunto signed-my name inthe presence of two snbscribing witnesses. JAMES INGLIS.

Witnesses:

' Y LI. B. COE,

F. E. DneM.-

Vdistance:from such point to the -periphery of the :Ean, and a hand-o'erable means for `tilting-fsaid 'fanand hol linglit ini its adcombination o asupport, y l a motor, a fanvwheel driven by said motor,

soA 

